# SS-KPI-14 SS max differential pressure exceedance

> SS max differential pressure exceedance: 100% below max dP. Substation KPI, HNTAS · assessed. Monitoring points, threshold and calculation.

| | |
|---|---|
| Element | Substation (SS) |
| Standing | HNTAS · assessed |
| Monitoring points | SS6 · 5 min · sensor dpOff |
| Threshold | 100% below max dP |
| Calculation | 1-time above/total. Uses design/maxDPOff |
| Period | Monthly |


## Discuss this KPI

Is the threshold right? Does the calculation match what you compute on your networks? [Comment on SS-KPI-14](https://github.com/heatweb/HNQAP/issues/new?template=kpi-comment.yml&kpi=SS-KPI-14&title=SS-KPI-14%3A%20), or report how it behaves on your data. Comments are public and are read before every revision.

## Machine-readable

This KPI is a row of [kpi-reference.json](/data/kpi-reference.json) (element `SS`, code `SS-KPI-14`). The [notation and rules](/kpis/#how-to-read-the-tables) that apply to every KPI are on the reference page.

## Related KPIs on the substation

- [SS-KPI-01 Substation ARMS connectivity](/kpis/ss-kpi-01/)
- [SS-KPI-02 Substation monitoring point data completeness](/kpis/ss-kpi-02/)
- [SS-KPI-03 Substation monitoring points operational](/kpis/ss-kpi-03/)
- [SS-KPI-04 Substation unplanned interruptions](/kpis/ss-kpi-04/)
- [SS-KPI-05 Substation planned interruptions](/kpis/ss-kpi-05/)
- [SS-KPI-06 Substation average flow temperature](/kpis/ss-kpi-06/)
- [SS-KPI-07 Substation average return temperature](/kpis/ss-kpi-07/)
- [SS-KPI-08 SS flow temperature variance from set point](/kpis/ss-kpi-08/)